16640510240 has 48 divisors (see below), whose sum is σ = 40375738872. Its totient is φ = 6476304384.

The previous prime is 16640510149. The next prime is 16640510279. The reversal of 16640510240 is 4201504661.

16640510240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12146684944 + 4493825296 = 110212^2 + 67036^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399529 + ... + 1411368.

Almost surely, 2^16640510240 is an apocalyptic number.

16640510240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

16640510240 is an abundant number, since it is smaller than the sum of its proper divisors (23735228632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16640510240 is a wasteful number, since it uses less digits than its factorization.

16640510240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810949 (or 2810941 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The spelling of 16640510240 in words is "sixteen billion, six hundred forty million, five hundred ten thousand, two hundred forty".